Measurement of the time-integrated CP asymmetry in D0 → KS0KS0decays

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The LHCb collaboration, Aaij, R, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M et al (show 90 more authors) , Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Anderson, J, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Aquines Gutierrez, O, Archilli, F, d’Argent, P, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Bel, LJ, Bellee, V, Belloli, N, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bertolin, A, Bettler, MO, van Beuzekom, M, Bien, A, Bifani, S, Billoir, P, Bird, T, Birnkraut, A, Bizzeti, A, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borsato, M, Bowcock, TJV ORCID: 0000-0002-3505-6915, Bowen, E, Bozzi, C, Braun, S, Britsch, M, Britton, T, Brodzicka, J, Brook, NH, Buchanan, E, Bursche, A, Buytaert, J, Cadeddu, S, Calabrese, R, Calvi, M, Calvo Gomez, M, Campana, P, Campora Perez, D, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A and Carniti, P (2015) Measurement of the time-integrated CP asymmetry in D0 → KS0KS0decays Journal of High Energy Physics, 2015 (10). 055-. ISSN 1126-6708, 1029-8479

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Abstract

Abstract: The time-integrated CP asymmetry in the decay D⁰→ K<inf>S</inf>⁰K<inf>S</inf>⁰is measured using 3 fb⁻¹of proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The flavour of the D⁰meson is determined by use of the decay D^*+→ D⁰π⁺and its charge conjugate mode. The result is A<inf>CP</inf>=−0.029±0.052±0.022, where the first uncertainty is statistical and the second systematic. The result is consistent with Standard Model expectations and improves the uncertainty with respect to the only previous measurement of this quantity by more than a factor of three.

Item Type:	Article
Additional Information:	All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2015-030.html
Uncontrolled Keywords:	CP violation, Charm physics, Flavor physics, Hadron-Hadron Scattering
Depositing User:	Symplectic Admin
Date Deposited:	08 Jul 2016 09:12
Last Modified:	22 Jan 2026 07:35
DOI:	10.1007/JHEP10(2015)055
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3002193
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